38 lines
1.1 KiB
Go
38 lines
1.1 KiB
Go
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// Copyright 2018 Google Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package pipe
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import (
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"gvisor.googlesource.com/gvisor/pkg/waiter"
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)
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// Writer satisfies the fs.FileOperations interface for write-only pipes.
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// Writer should be used with !fs.FileFlags.Read to reject reads.
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type Writer struct {
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ReaderWriter
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}
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// Release implements fs.FileOperations.Release.
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func (w *Writer) Release() {
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w.Pipe.wClose()
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// Wake up readers.
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w.Pipe.Notify(waiter.EventHUp)
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}
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// Readiness returns the ready events in the underlying pipe.
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func (w *Writer) Readiness(mask waiter.EventMask) waiter.EventMask {
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return w.Pipe.wReadiness() & mask
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}
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